Antimicrobial Powder
Coatings


Polyester Powders

28th June 2020 – Antimicrobial Powder Coatings

Eco friendly
TGIC-free

Thermaset Limited offer a range of Antimicrobial Powder Coatings, polyester powder coatings formulated to be TGIC-free, designed for interior or exterior use.

Kills most
bacteria

Specially formulated with the added benefit of an effective antimicrobial agent which kills most species of bacteria and discourages the settlement of harmful bacteria, fungi and mould.

Effective
for years

The range is designated on selected resins and light-fast pigments to give excellent exterior durability and resistance to yellowing. Any colour available by arrangement.

It has never been easier

to protect your products against bacteria, mould and algae with Thermaset’s ThermaShield Antimicrobial Powder Coatings.

Thermaset Ltd is the largest privately-owned powder coatings supplier and manufacturer based in the UK.

We deliver outstanding product quality, customer service and assure worldwide delivery.

What is Antimicrobial Powder Coating?

Antimicrobial powder coating is a special type of coating that helps prevent the growth of harmful bacteria, mould, and other microbes on surfaces. This coating is perfect for places that need to stay clean and hygienic, like hospitals, schools, kitchens, and public transportation.

Introducing Thermashield

Thermashield is our special range of antimicrobial powder coatings which is specially designed to provide an extra layer of protection to various surfaces by incorporating SteriTouch antimicrobial technology. ThermaShield is a product range which can be used in a wide range of everyday applications including hygiene-critical environments and areas of high human traffic. SteriTouch prevents the growth of bacteria, biofilm, mould and other viruses by up to 99.99% for the lifetime of the product. It works continuously and effectively and is already used by a huge range of industries worldwide.

How Do Antimicrobial Coatings Work?

Antimicrobial powder coatings contain additives in the form of silver ions that stop microbes from growing. When microbes come into contact with the coated surface, silver ions embedded in the material substrate are released via ambient moisture and enter the cell membrane. The silver ions destabilise the cell, stop respiration and inhibit cell division, whilst blocking the replication of DNA, killing the cell.

Benefits of Antimicrobial Powder Coatings

There are several advantages to using antimicrobial powder coatings, making them popular in various industries. Here are some key benefits:

Enhanced Durability

Our antimicrobial powder coatings are not only protective against microbes but also durable against scratches, chips, and other forms of wear and tear. This means your surfaces will look better and last longer.

Aesthetic Versatility

Beyond its antimicrobial properties, Thermashield enhances the visual appeal of surfaces. Available in a wide range of colours and finishes, it allows for customization while maintaining its protective qualities. This makes it an ideal choice for both functional and aesthetically pleasing environments.

Improved Hygiene

Thermashield coatings offer unparalleled hygiene by actively inhibiting the growth of bacteria, mould, and fungi on surfaces. This proactive approach ensures that environments, especially those in healthcare and food processing, remain clean and safe for employees and customers alike.

Safe and Approved

All of the active substances used are approved by the EPA, EFSA and FDA, and are supported for authorisation under the Biocidal Products Regulation. We do not use Nano-silver, triclosan or other organic antimicrobial additives which have health or environmental concerns. The additives we use are non-leaching and non-sensitising.

Antimicrobial Powder Coatings Brochure


ThermaShield Powders


ThermaShield Brochure

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Technical Data Sheet

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Ideal Applications:

  • Hospitals
  • Care Homes
  • Laboratories
  • Food Production Facilities
  • Gym & Health Clubs
  • Public Transport
  • Schools
  • Ticketing machines
  • Parcel Collection Points
  • Changing rooms & Restrooms

Mechanical Tests


Flexibility (cylindrical mandrel)ISO 1519Pass minimum 5mm
Buchholz HardnessISO 2815Pass minimum 80
ImpactISO 6272-2Pass minimum 2.5Nm
Erichsen cuppingISO 1520Pass minimum 5mm
Adhesion (2mm cross hatch)ISO 2409Pass Gt 0

Results shown above are for laboratory test conditions and are given in good faith for guidance only.
Mechanical test panels 60 – 70 microns on polished steel.

Chemical Tests


Constant HumidityISO 6270Pass 1000 hours
Boiling Water2 hoursNo defects or detachments
Acetic Acid Salt SprayISO 9227After 1000 hours / 10cm scratch:
Total corrosion < 16mm2
Sulphur DioxideISO 3231After 24 cycles, infiltration < 1mm from scratch
Mortar ResistanceEN 12206-1Easy to remove, no staining

Results shown above are for laboratory test conditions and are given in good faith for guidance only.
Chemical and durability test panels 60 – 70 microns on lightweight zinc phosphate.

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Specification of Powders

Antimicrobial Powder Coatings

TLSA – G

ThermaShield Antimicrobial Polyester Gloss Powder Coating

TLSA – S

ThermaShield Antimicrobial Polyester Semi-Gloss Powder Coating

TLSA – M

ThermaShield Antimicrobial Polyester Matt Powder Coating

Thermaset Limited offer a range of polyester powder coatings containing an effective antimicrobial agent designed for both interior and exterior use. This range is specially formulated on selected polyester resins and pigments to give a tough decorative finish with excellent outdoor durability with the added benefit of an effective antibacterial agent called SteriTouch which kills most species of bacteria and discourages the settlement of harmful bacteria, fungi and mould.

Thermasets’ ThermaShield Antimicrobial Polyester has achieved > 99.9% kill rates over a 24 hour period against both Staphylococcus aureus Methicillin-Resistant Strain (MRSA) and Escherichia coli (E Coli)

Suitable for electrostatic spray

Preferred – 60 to 70 microns

See box label for recommended curing conditions. Typical values are:

Gloss and Semi-Gloss – 10 minutes @ 180°C peak metal temperature
Matt – 10 minutes @ 200°C peak metal temperature

1.2 – 1.8 depending on colour & finish

Store in original containers in dry cool conditions between 5°C and 25°C.
12 months of shelf life when stored according to specification. Open boxes must be resealed.

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Properties of Powders

Antimicrobial Powder Coatings

For maximum adhesion the substrate must be thoroughly cleaned of grease, rust etc. by shot blasting, solvent or chemical degreasing. For maximum protection it is essential to pretreat the substrate prior to the application of Thermaset Limited ThermaShield Anti-microbial Polyester Powder Coating.

Aluminium
Aluminium components should receive a full multi-stage chromate conversion coating or similar chrome-free pretreatment to clean and prepare the substrate. Detailed advice should be sought from the pretreatment supplier.

Galvanized steel
Galvanized steel requires multi-stage pretreatment with either zinc phosphate or chromate conversion.

Depending on the type of galvanizing, degassing or use of anti-bubbling additives may be required. Detailed advice should be sought from the pretreatment supplier.

Ferrous substrates
Ferrous substrates require iron or zinc phosphate pretreatment. Detailed advice should be sought from the pretreatment supplier.

Thermaset Limited ThermaShield Anti-microbial Polyester Powder Coatings can be applied by manual or automatic electrostatic spray equipment, an even dry film thickness of 60-70 microns is recommended. Only one batch and one spray run should be used for components that will be visible simultaneously after assembly.

Generally good resistance to acids, alkalis and oil at normal temperatures.

After 12 months exposure, minimal loss of gloss or colour change. No film breakdown or loss of protection.

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More Details

Antimicrobial Powder Coatings

Thermaset Limited has developed these TLSA ThermaShield Antimicrobial Powder Coatings to aid the inhibition of bacterial growth on coated metal surfaces. They are not intended to replace or reduce existing hygiene or cleaning regimes but as an additional protection against bacterial growth.

This product is intended for use only by professional applicators in industrial environments. Consult the relevant Material Safety Data Sheet available from Thermaset.

Our data sheets and sales literature are issued for the purpose of supplying product information. The information in this data sheet is not intended to be exhaustive and is based on the present state of our knowledge and on current laws: any person using the product for any purpose other than that specifically recommended in the technical data sheet without first obtaining written confirmation from us as to the suitability of the product for the intended purpose does so at his own risk. It is always the responsibility of the user to take all necessary steps to fulfil the demands set out in the local rules and legislation. Always read the Material Safety Data Sheet and the Technical Data Sheet for the product if available. All advice we give or any statement made about the product by us (whether in this data sheet or otherwise) is correct to the best of our knowledge but we have no control over the quality or condition of the substrate or the many factors affecting the use and application of the product. Therefore, unless we specifically agree in writing, we do not accept any liability whatsoever for the performance of the product or for any loss or damage arising out of the use of the product. All products supplied and technical advices given are subject to our standard terms and conditions of sale. You should request a copy of this document and review it carefully. The information contained in this data sheet is subject to modification from time to time in the light of experience and our policy of continuous improvement. It is the user’s responsibility to verify that this data sheet is current prior to using the product.

Thermaset Limited ThermaShield Polyester Anti-microbial Powder Coatings are suitable for use on items covered by Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012 (Directive 11/65/EU, ROHS 2). This product contains none (or less than the maximum allowed amount) of the following restricted chemicals: Lead, Mercury, Cadmium, Hexavalent Chromium or their compounds, Poly-brominated biphenyl (PBB) or Poly-brominated diphenyl ether (PDBE) flame retardants, Bis(2-ethylhexyl) phthalate (DEHP), Benzyl butyl phthalate (BBP), Dibutyl phthalate (DBP), Diisobutyl phthalate (DIBP)

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